CN106574608A

CN106574608A - Valve stop retainer device

Info

Publication number: CN106574608A
Application number: CN201480081398.4A
Authority: CN
Inventors: J·D·莫雷勒; J·史密斯
Original assignee: FMC Europe SA
Current assignee: FMC Technologies SAS
Priority date: 2014-07-11
Filing date: 2014-07-11
Publication date: 2017-04-19
Anticipated expiration: 2034-07-11
Also published as: MX2017000387A; US20170159655A1; RU2668586C2; CA2954375A1; RU2017104429A3; EP3167188A1; RU2017104429A; US10907632B2; WO2016007174A1; CN106574608B; CA2954375C

Abstract

A valve stop retainer device (220) that is adapted to interface with a cross-bore fluid communication chamber (262) of a reciprocating pump (250) includes a spring retainer plate (221) and a plurality of retainer lobes (223) extending substantially away from a first side of the spring retainer plate (221). Each of the plurality of retainer lobes (223) includes an upper portion (223u) having an outer surface (223s). A shape of each of the outer surfaces (223s) and a shape of an inside surface (261) of the cross-bore fluid communication chamber (262) interfacing with the valve stop retainer device (220) substantially conform to a shape of at least a portion of a surface of revolution. The valve stop retainer device (220) is adapted to be retained inside of the cross-bore fluid communication chamber (262) by the shape of the inside surface (261).

Description

Valve stop fixing device

Technical field

The disclosure relates in general to reciprocating plunger type and reciprocating pump, more particularly to the valve being usable in this kind of pump stops Dynamic fixing device.

Background technology

Plunger displacement pump generally includes the plunger being positioned in plunger hole, the inlet valve being positioned in inlet hole and is positioned at discharge Dump valve in hole.During operation, plunger is moved back and forth in the plunger hole, to alternately pass through inlet valve by fluid alternately Fluid is discharged from pump by dump valve in suction pump and then.Generally, valve stop fixing device is in pump operated period Inlet valve is held in place in inlet hole, if no valve stop fixing device, inlet valve and/or its corresponding component will be freely Be increased in plunger path, so as to other parts of plunger or pump cause damage.In large-scale plunger displacement pump, such as usual For, in the plunger displacement pump of oilfield applications, valve stop fixing device is typically removable part, and which can be installed independently of inlet valve Or remove, so as to allow pump to be checked and/or maintenance activity.

Various components for by valve stop fixing device be arranged on reciprocating pump inlet hole and/or pump chamber in.For example, Fig. 1-4 shows an illustrative valve stop fixing device for being applied to existing some application scenarios.Fig. 1 is existing example The partial cross section view of the fluid end 100 of property reciprocating pump 150, plunger hole 104 He of the cross-sectional view along pump fluid end 100 Pump chamber 162 takes.Plunger 102 is positioned in plunger hole 104, and plunger hole is formed in pump case 101, and plunger 102 is along plunger axis Line 103 is moved back and forth in plunger hole 104.Inlet valve 105 is positioned in inlet hole 107, and dump valve 109 is positioned at tap In 110.Valve stop fixing device 120 is positioned substantially between 102/ plunger hole 104 of inlet valve 105 and plunger, for sucking Valve 105 fixes which in the position in inlet hole 107.Inlet hole 107 has axis 106, and tap 110 has axis 116, Under certain situation, axis 116 is coaxially aligned with axis 106.Additionally, inlet valve 105 is activated along axis 106, dump valve is along axle Line 116 is activated.Via plug 112 and thread plate 111 are positioned in passage opening 114, both can be removed, to provide extremely Checked inside pump chamber 162 and/or maintenance activity path.Passage opening 114 is with being coaxially aligned with plunger axis 103 Opening axis 113.

Reciprocating pump 150 operate during, plunger 102 along plunger axis 103 remove from pump chamber 162 and/or away from Pump chamber 162 is moved, so as to cause the Fluid pressure in pump chamber 162 to reduce.This reduction of the Fluid pressure in pump chamber 162 is being inhaled Enter 105 both sides of valve and form pressure reduction, the pressure reduction causes inlet valve 105 to be actuated into its open position when sufficiently high, so as to allow stream Body is entered in suction inlet 117 and pump chamber 162 from the fluid intake (not shown) of 105 upstream of inlet valve.When plunger 102 continues along post When plug axis 103 is moved away from pump chamber 162, fluid enters pump chamber 162, until between pump chamber 162 and fluid intake (not shown) Pressure reduction it is sufficiently low so that inlet valve 105 is actuated into its closed position.The adverse movement in the plunger hole 104 of plunger 102 is (reciprocal to transport It is dynamic) after, plunger is moved back to and/or is moved back in pump chamber 162 towards pump chamber 162, so as to cause the Fluid pressure in pump chamber 162 to increase Greatly.When plunger 102 is moved and during closer to pump chamber 162, the Fluid pressure in pump chamber 162 continues increase, until 102 liang of dump valve The pressure reduction of side is sufficiently large so that dump valve 109 is actuated into its open position, it is allowed to which fluid leaves the stream of pump chamber 162 to outlet 127, then from outlet stream to dump valve 109 downstreams fluid issuing (not shown).

Fig. 2 is the end-view of valve stop fixing device 120, and Fig. 3 is the section in Fig. 2 of valve stop fixing device 120 The cross-sectional view that line " 3-3 " takes.Valve stop fixing device 120 includes fixing inhalation valve spring 108 relative to suction inlet 117 Spring dead plate 121.Spring dead plate 121 has tapered end face 121t, and the tapered end contact is diametrically opposed to one another with being bonded on A pair of flanges lip or raised 115, the flange lip or projection are positioned at suction inlet 117 along corresponding tapered surface 115t At upper end.

Fig. 4 be suction inlet 117 along the partial view observed by the observation line " 4-4 " shown in Fig. 1, depict valve stop solid Determine device 120 to be positioned inside suction inlet 117 so that tapered end 121t is contacted and is bonded on the projection 115 being diametrically opposed to one another gradually The mode of contracting surface 115t.For clarity, all inner members (e.g., plunger 102, inlet valve 105, logical of pump fluid end 100 Road plug 112, thread plate 111 etc.) remove from Fig. 4, the spring of valve stop fixing device 120 is illustrate only with dotted line The profile of fixed plate 121.Before via plug 112 and thread plate 111 is installed, valve stop fixing device 120 is opened by path Mouth 114 is installed in pump fluid end 100.As shown in figure 4, valve stop fixing device 120 is oriented in position " A " so that bullet Tapered end 121t of spring fixed plate 121 is positioned above the open space between two projections 115.Valve stop fixing device 120 is right After be lowered in suction inlet 117, inhalation valve spring 108 is fully compressed by spring dead plate 121 so that spring dead plate 121 Tapered end 121t be oriented in below the height of conical surface 115t of respective protrusions 115.Valve stop fixing device 120 and then rotation Go on position " B " so that tapered end 121t of spring dead plate 121 is oriented in below respective bump 115.Spring 108 is then Valve stop fixing device 120 is biased upward, until tapered end 121t is contacted and engages tapered surface 115t.

As shown in figs. 1 and 3, valve stop fixing device 120 has the post or bar 122 for being attached to one end, and bushing 123 is attached to The upper end of bar 122.When valve stop fixing device 120 is installed in shown in Fig. 1 and 4 and above-mentioned suction inlet 117, bushing 123 centrage is coaxially aligned with opening axis 113, and the centrage of valve stop fixing device 120 is coaxially right with axis 106 It is accurate.Via plug 112 is then mounted in passage opening 114 so that from the cylindrical hub 112h insertion that the center of plug 112 is stretched out In coaxillay aligned bushing 123.So, bar 122, bushing 123 and hub 112h play a part of anti-rotation device jointly, so as to prevent Spring dead plate 121 was rotated in pump operated period, it is ensured that tapered end 121t is maintained at below raised 115 tapered surface 115t simultaneously Contact engagement so that inlet valve 105 is fixed in inlet hole 107.

In the pumping application of many oil fields, such as, during water filling and/or formation breakdown operation, usually require that reciprocating plunger In the range of pump conveying substantially 70-100MPa (10-15,000psi) or even more high fluid discharge pressure.As reciprocating pump leads to Normal operating characteristic, the fluid end of pump bear the load of high frequency circulating pressure.It is applied in the pump under the severe conditions of pole at some, such as In pump for above-mentioned high pressure field application, the inner surface along pump frequently produces very high stress intensity.For pump geometry is tied In structure, structure discontinuous portion office or the high stress concentrations region for nearby occurring, for example, intersect the edge in hole etc., and situation is particularly So.In the case of the pump fluid end 100 shown in Fig. 1 and 4, this high stress concentrations region be included within plunger hole 104 and/ Or passage opening 114 is opened with the edge 118e of the intersection formation in the hole 118 of suction inlet 117 and in plunger hole 104 and path The edge 109e that mouth 114 is formed with 110 intersection of tap.Often there are the other structures of high stress concentrations in Jing Any inner recess, groove, flange lip and/or the protruding member for supporting and/or positioning in position pump inner member are turned Angle.For example, in the pump fluid end 100 shown in Fig. 1 and 4, such positioning is included for valve stop fixing device 120 is positioned With the turning 115c of the projection 115 being fixed in suction inlet 117.

For the reciprocating pump being applied under the severe conditions of pole, the intrinsic high-amplitude circulation in its high-voltage pulse load Under pressure, fatigue crack is generally formed in the above-mentioned high pressure concentrated area of pump fluid end and neutralizes around which.Opened according to this fatigue The characteristic split and scope, it usually needs the fluid end of high pressure reciprocating pump is removed from using in so that fatigue crack can be repaiied Reason and/or replacing pump.In order to reduce the pressure intensity in these regions and reduce pump due to repairing and/or changing what is caused Downtime measures, the edge formed in the intersection of each pumping holes in some existing pumps, such as edge of pump fluid end 100 118e and/or 110e, is generally driven plain by grinding or processing, with rounding or chamfer configuration.Similarly, inner recess, Turning (such as raised 115 turning 115c) the generally rounded and/or chamfering of groove and/or prominence, or to raised geometry Structure is adjusted to make them progressively be fused in the surface stretched out by projection.Although these edges/turning flatten and/or Integration program can be used to incrementally reduce such high stress concentrations, but these regions are being applied to the reciprocal of pole severe conditions Easily there is fatigue cracking under repeated loading and heavily stressed intensity produced by pump.

It relates to various new methods, device and pump element construction, constructs including novel valve stop fixing device, its Can be used at least alleviate at least some in the problems referred to above related to the high stress concentrations region of existing reciprocating pump.

The content of the invention

The simplified summary of the disclosure is given below, to provide the basic comprehension in terms of some disclosed herein.The summary The exhaustive overview disclosure, is not intended to determine the crucial or critical elements of theme disclosed herein yet.Its sole purpose It is to provide some designs in a simple form as preamble in greater detail discussed below.

The disclosure relates in general to various methods, device and pump element construction, and they can play reduces and reciprocating pump The effect that the related high stress concentrations of inner geometry construction affect.In an illustrative embodiment, disclose be suitable to back and forth The cross-drilled hole (cross-bore) of pump is in fluid communication the valve stop fixing device of chamber docking.Valve stop fixing device especially includes bullet Multiple fixed lobes that spring fixed plate extends with the first side for being generally away from spring dead plate.Additionally, in the plurality of fixed lobes Each includes the upper part with outer surface, wherein, the shape of each outer surface and cross-drilled hole are in fluid communication the solid with valve stop of chamber The shape of inner surface for determining device docking is substantially consistent with least one of shape of rotary surface.Further, since inner surface Shape, disclosed valve stop fixing device is suitable to be fixed on cross-drilled hole and intracavity portion is in fluid communication.

In a further exemplary embodiment, a kind of fluid end component of reciprocating pump is disclosed, which especially includes pump case Chamber is in fluid communication with the cross-drilled hole being positioned in pump case, wherein, cross-drilled hole is in fluid communication chamber and has inner surface, the shape of the inner surface Substantially it is consistent with the shape on the border limited by the rotary surface with axis of rotation.Exemplary stream body end component also includes positioning Inlet hole, the inlet valve being positioned in inlet hole and the valve stop being positioned in cross-drilled hole fluid communication chamber in pump case is consolidated Determine device, the valve stop fixing device includes the multiple fixed lobes with outer surface part.Valve stop fixing device is suitable to It is positioned at when cross-drilled hole is in fluid communication intracavity portion and rotate around axis of rotation, and is suitable to inlet valve in the back and forth pump operated period It is fixed in inlet hole.Additionally, the shape of each outer surface part is substantially consistent with the shape on the border of rotary surface.

Description of the drawings

The disclosure can be understood by referring to the description for carrying out below in conjunction with the accompanying drawings, wherein same reference number represents same The element of sample, in the accompanying drawings：

Fig. 1 is the partial cross section view of the fluid end of the illustrative reciprocating pump of prior art；

Fig. 2 is that dress is fixed in the example valve stop of the prior art used in the reciprocating pump of the prior art of Fig. 1 The end-view put；

Fig. 3 is the cross-sectional view that the valve stop fixing device of the prior art shown in Fig. 2 is taken along section line " 3-3 "；

Fig. 4 is that the valve stop of the suction inlet and prior art of the reciprocating pump of prior art depicted in figure 1 is fixed Partial view of the device when the observation line " 4-4 " along Fig. 1 is viewed from above；

Fig. 5 is the isometric view of the exemplary stream body end of the reciprocating pump of the one embodiment according to the disclosure；

Fig. 6 is that a plug portion of example pump fluid end depicted in figure 5 is seen in the section line " 6-6 " along Fig. 5 Cross-sectional view when examining；

Fig. 7 is the close-up cross-sectional view that cross-drilled hole depicted in figure 6 is in fluid communication chamber；

Fig. 8 is that each cross-drilled hole of illustrative pump fluid end depicted in figure 5 is in fluid communication chamber in the section line along Fig. 5 Cross-sectional view when " 8-8 " is observed；

Fig. 9 is the signal of the cross-drilled hole geometry shown in the Fig. 6-8 according to an exemplary embodiment disclosed herein Figure；

Figure 10 is depicted in figure 6 after each pump element is had been in the central plunger part of pump The cross-sectional view of pump fluid end；

Figure 11 be in central plunger part of each pump element already installed on pump after pump stream depicted in figure 8 The cross-sectional view of body end；

Figure 11 A are the features of the docking that cross-drilled hole is in fluid communication between the inner surface and the outer surface of valve stop fixing device in chamber Detailed view；

Figure 12 is the isometric views of the example valve stop fixing device of an illustrative embodiment according to the disclosure；

Figure 13 is the top view of the illustrative valve stop fixing device shown in Figure 12；

Figure 14 is the side view of valve stop fixing device depicted in figure 12；

Figure 15 is the upward view of the valve stop fixing device shown in Figure 12；

Figure 16 is the end-view of the valve stop fixing device of Figure 12；

Figure 17 is that valve stop fixing device depicted in figure 12 is transversal when the section line " 17-17 " along Figure 16 is observed Face figure；With

Figure 18-22 is that each cross section isometry of the central plunger part of illustrative pump fluid end depicted in figure 5 is regarded Figure, shows can be used for the example valve stop fixation dress of the disclosure according to an illustrative embodiment disclosed herein Put each step being installed in pump fluid end.

Although theme disclosed herein is easy to carry out various improvement and using various alternative forms, its specific embodiment It is illustrated by way of example in the accompanying drawings and here has been described in detail.However, it is to be understood that at this to specific embodiment Description be not intended to limit the invention to particular forms disclosed, on the contrary, it is intended to cover fall into the present invention spirit With all improvement in scope, equivalent and replacement.

Specific embodiment

Each illustrative embodiment of this theme is described below.For clarity, actual embodiment it is not All features are all described by this manual.It will, of course, be appreciated that in the mistake for forming any such practical embodiments Cheng Zhong, it is necessary to carry out the decision that many is exclusively used in embodiment, to realize the specific purpose of developer, for example, compliance system The related restrictive condition related to business, these restrictive conditions are according to the different and different of embodiment.Additionally, should realize Arrive, such development effort is probably complicated and time-consuming, but for benefiting from those ordinary skills people of the disclosure For member, normal work to do is remained.

It is now described with reference to the drawings this theme.Various systems, construction and device, purpose are schematically depict in accompanying drawing Be only used for explaining, and the disclosure is not made with known unnecessary details to those skilled in the art.Even so, being included Description of Drawings and explain the illustrated examples of the disclosure.Word as used herein and phrase should be understood that and be construed to its implication It is consistent with understanding of the those skilled in the relevant art to these words and phrase.Special definition is not carried out to term or phrase (that is, not making the definition different from common and conventional sense understood by one of ordinary skill in the art), this is intended that and is implicitly included in This term or phrase is consistent with usual usage.If certain term or phrase are intended to specific meanings, i.e. with special with technology The different implication that understood of family, then in the description by directly, unambiguously providing the specific of the term or phrase The definition mode of definition is specially clearly illustrated to such specific definitions.

In the following detailed description, various details are elaborated, it is disclosed herein various exemplary thoroughly to understand Embodiment.However, it will be apparent to one skilled in the art that, there is no various some disclosed in details or complete as these In the case of portion, some illustrative embodiments for the present invention being defined by the claims appended hereto can be put into practice.Additionally, ability Feature known to domain and/or technique are not described in detail comprehensively, in order to avoid unnecessarily make disclosed theme ambiguous not Clearly.Additionally, same or identical reference number can be used to represent common or same element.

Fig. 5 is isometric views, shows the fluid end component 200 of the exemplary embodiment of reciprocating pump 250.Such as Fig. 5 Shown, pump fluid end 200 may include the pump case 201 with multiple mounting flanges 233, and these mounting flanges are for by pump fluid End 200 is installed to the corresponding power end (not shown) for transfer tube 250.In certain embodiments, pump fluid end 200 can be wrapped Multiple plug portion 270a, 270b, 270c are included, although three plug portions, the total quantity of plug portion are shown in Fig. 5 Can be changed according to the Parameter of Overall Design of reciprocating pump 250, such as from 1 plug portion to 5 plug portions or even more many Individual plug portion.

Fig. 6 is a plug portion (that is, central plunger part 270b) of pump fluid end 200 in the section line " 6- along Fig. 5 Cross-sectional view when 6 " observing.Fig. 7 is the close-up illustration that the cross-drilled hole shown in Fig. 6 is in fluid communication chamber 262, shows cross-drilled hole fluid The further details in connection chamber 262.In certain embodiments, each plug portion 270a-270c is (and shown in Fig. 5 Other any plug portions in addition to these three plug portions) can be configured with substantially similar pattern.Therefore, it should manage Solution, any description to plug portion 270b being described below are similarly applicable for any reciprocating pump disclosed herein 250 In included other any plug portions.Additionally, each cross-drilled hole that Fig. 8 is pump fluid end 200 is in fluid communication chamber 262 along figure Cross-sectional view when 5 observation line " 9-9 " is observed.For clarity, each inner member of pump fluid end 200 is in figs. 5 to 8 It is not shown, but illustrate in figures 10 and 11, will be described by further detail below.

In general, during the operation of reciprocating pump 205, cross-drilled hole is in fluid communication chamber 262 and is suitable to receive by suction Hole 207 flows into the fluid stream in plug portion 270b and is suitable to the fluid stream is discharged in tap 210.As Fig. 6-8 institute Show, plunger displacement pump 270b (and any plug portion of other similar of pump fluid end 200) may include chamber is in fluid communication in cross-drilled hole The multiple holes intersected at 262.For example, in certain embodiments, plug portion 270b may include 262 phase of chamber is in fluid communication with cross-drilled hole The plunger hole 204 of friendship, edge 204e are formed in intersection.Additionally, plunger hole 204 can pass through pump fluid end along plunger axis 203 200 housing 201, and it is (not shown to be suitable to reception reciprocating plunger 202；Referring to Figure 10 and 11).As shown in Figures 6 and 7, plunger hole Extend between 204 countersunks 219 that can be coaxially aligned in cross-drilled hole fluid communication chamber 262 and with plunger axis 203.At some In embodiment, countersunk 219 may be adapted to receive 232 (not shown) of stuffing box, as further described below in conjunction with Figure 10 Like that.

As previously noted, plug portion 270b may also include be suitable to accommodate dump valve 209 it is (not shown；Referring to Figure 10 and 11) Tap 210, the tap and cross-drilled hole are in fluid communication chamber 262 and intersect and form edge 210e.As seen in figs. 6 and 8, tap 210 pass through pump case 201, and can be positioned between cross-drilled hole fluid communication chamber 262 and outlet 227, and the outlet is suitable to connect Receive and the fluid that cross-drilled hole is in fluid communication chamber 262 is left by dump valve 209.In certain embodiments, the discharge of plug portion 270b Mouthfuls 227 can be by (and other any discharges of pump fluid end 200 of lateral communication hole 230c and other outlets 270a/c Mouthful) in each outlet and pump discharge 230 (referring to Fig. 5) be in fluid communication, lateral communication hole 230c is passed through along outlet axes 231 Pump case 201.Plug portion 270b can also include the bottom passageway opening for being suitable to receive 229 (not shown) of bottom passageway plug 228, this will be further described with reference to Figure 10 and 11 below.And, as seen in figs. 6 and 8, bottom passageway hole 234 can position Between bottom passageway opening 228 and outlet 227.In at least some illustrative embodiment, tap 210 can be along common One in discharge side axis 216 and outlet 227, bottom passageway opening 228 and/or bottom passageway hole 234, some or all It is coaxially aligned.

As Fig. 6-8 describes, intercommunicating pore 218 can also be in fluid communication chamber 262 with cross-drilled hole and intersect, so as to along intercommunicating pore 218 and the intersection formation edge 218e in cross-drilled hole fluid communication chamber 262.Intercommunicating pore 218 may be adapted to chamber 262 is in fluid communication in cross-drilled hole Fluid communication is provided between suction inlet 217, the suction inlet then may be adapted to receive (not shown by inlet valve 205；Referring to Figure 10 With 11) into the fluid of plug portion 270b, the inlet valve is suitable to be positioned in inlet hole 207.Additionally, in pump disclosed herein In at least some embodiment of construction, intercommunicating pore 218 is considered the extension of suction inlet 217, i.e. so that suction inlet 217 are in fluid communication chamber 262 with cross-drilled hole intersects.Therefore, for the purpose that this is discussed, the reference to connecting chamber 218 is believed that equally Suitable for suction inlet 217, this can be suitable for described specific suction side pump construction.As seen in figs. 6 and 8, inhale Enter hole 207, suction inlet 217 and intercommunicating pore 218 and can pass through pump case 201, and in addition can be along common suction side Axis 206 is coaxially aligned.

In at least some embodiments, intercommunicating pore 218, suction inlet 217 and inlet hole 207 can be positioned substantially on cross-drilled hole stream On the side relative with tap 210 in body connection chamber 262.In such embodiments, suction side axis 206 can be with discharge side Axis 216 is coaxially aligned, but at least one embodiment, suction side axis 206 and discharge side axis 216 can be according to spies Fixed pump design parameter Strategic Lateral Offset.In other embodiments, suction side axis 206 is can be oriented to relative to discharge side axis 216 is at an angle, for example, as in Y type cylinder bodies plunger displacement pump construction and like configurations.

Plug portion 270b can also include side via hole 214, and the side via hole is positioned substantially on cross-drilled hole and chamber is in fluid communication On 262 side relative with plunger hole 204, and edge 214e can be intersected to form with cross-drilled hole fluid communication chamber 262.As schemed Shown in 6-8, side via hole 214 can pass through pump case 201 along side axle line 213, and can be positioned at cross-drilled hole fluid communication chamber 262 Between side passage opening 211, the side passage opening is suitable to 212 (not shown) of receiving side via plug, and this will combine figure below 10 further describe.In certain embodiments, side passage opening 211 can be coaxially right with side via hole 214 along side axle line 213 It is accurate.Additionally, in some of the exemplary embodiments, as shown in figs 6-8, side axle line 213 can be coaxially right with plunger axis 203 Standard, but in other embodiments, side axle line 213 and plunger axis 203 laterally and/or vertically can be biased.

As described above, the illustrative embodiment described in Fig. 6-8 all illustrate each hole 204,210,218 and 214 can The zones of different that chamber 262 is in fluid communication with cross-drilled hole intersects, rather than as in the pump chamber 162 of the pump fluid end 100 of prior art Normal conditions mutually intersect like that.So, relative in the pump chamber 162 of the pump fluid end 100 of prior art and around it is usual There is the stress concentration at the turning and edge 118e, 110e and/or 115c for more drastically limiting, chamber is in fluid communication in cross-drilled hole Can be obviously reduced with stress concentration of the surrounding generation at intersecting edge 204e, 210e, 218e and 214e in 262.Referring to Fig. 1 and 4 and the description that is set forth above.

As shown in figs 6-8, cross-drilled hole chamber 262 is in fluid communication can be by being substantially consistent with 3D shape with border 260 Shape is limited.Additionally, as noted, the border 260 for limiting the 3D shape of the shape in cross-drilled hole fluid communication chamber 262 can quilt In being configured to reduce and/or minimize the fluid end (referring to Fig. 1 and 4) due to the reciprocating pump in prior art, Jing often occurs Typical cross-drilled hole construction and the severe in any high stress concentrations region that generally occurs.For example, in some illustrative enforcements In example, cross-drilled hole is in fluid communication chamber 262 and can be substantially consistent with the shape for being configured to three-dimensional elliptical shape so that by each Hole 204,210,218 and 214 respectively with cross-drilled hole be in fluid communication chamber 262 intersect place restriction each respective edges 204e, There is the generally smooth and continuous surface being consistent with the shape on border 260 substantially between 210e, 218e and 214e and its around Part 261.In other embodiments, the 3D shape for limiting cross-drilled hole fluid communication chamber 262 may be configured so that border 260 represent any surface of revolution being suitably formed, i.e. wherein the curve of suitable shape is rotated around coplanar axis of rotation --- Assume that above-mentioned generally smooth and continuous surface portion 261 is present in around each edge 204e, 210e, 218e and 214e.Cause This, although at least some in the description being described below is may relate to the exemplary of various types of ellipsoid construction Cross-drilled hole chamber 262, however it will be appreciated that the cross-drilled hole chamber shape in addition to ellipsoid can be used.

Fig. 9 schematically depict the several of the explanation ellipsoidal shape of at least some exemplary embodiment according to the disclosure The various aspects of what feature, the ellipsoidal shape can be used to limit the cross-drilled hole geometry shown in Fig. 6-8.As shown in figure 9, using The ellipsoid on border 260 in chamber 262 is in fluid communication in restriction cross-drilled hole centered on the origin O of X, Y and Z axis, and is had substantially Meet any construction of following ellipsoid normal equation：

Wherein,

Half main shafts of a=length in X direction；

Length of half main shafts of b=along Y-direction；With

Length of half main shafts of c=along Z-direction.

It should however be noted that in order to allow the continuous surface part 261 described in Fig. 6-8 be present in each edge 204e, Between 210e, 218e and 214e and surrounding, half main axis length a, b and c can be with relative to the radius in hole 204,210,218 and 214 Meet following additional conditions：

a>The radius in hole 204,210,218 and 214；

b>The radius in hole 210 and 218；With

c>The radius in hole 204 and 214.

In some exemplary embodiments, the surface 260 of ellipsoid 262 can produce in a rotative pattern, for example, by making Any one rotation of two-dimensional elliptic in its major axis or short axle, in this case, it is ellipse that ellipsoid 262 is referred to alternatively as revolution sometimes Circle or spheroid.In this case, ellipsoid of revolution (or spheroid) 262 will have the half of at least two equal lengths Main shaft, and the length of the 3rd half main shaft can be more than, less than or equal to the two equal lengths half main shaft length.Example Such as, with reference to Fig. 9, oval 264 centered on origin O, with minor axis length a and long axis length c.If oval 264 rotate about the z axis To form ellipsoid of revolution (or spheroid) 262, then, half main shaft length in X direction will be a, and half main shaft is along Y-direction Length will be b=a, and half main shaft will be c along the length of Z-direction.According to length c relative to length a and the size of b, as a result may Three kinds of different ellipsoidal shapes can be formed：

If a=b>C, forms flat ellipsoid of revolution or oblate spheroid；

If a=b<C, forms long ellipsoid of revolution or prolate spheroid；

If a=b=c, spheroid is formed.

In the illustrative embodiment shown in Fig. 6-8, cross-drilled hole is in fluid communication chamber 262 and is depicted as spheroid form (that is, in a In the case of=b=c), and there is the radius of a ball 263 (referring to Fig. 7).In such embodiments, shown in equation above 1 Ellipsoid normal equation be reduced to following spheroid (centered on its origin O by X, Y and Z axis) equation：

x²+y²+z²=r² (2)

Wherein：

(e.g., the radius shown in Fig. 7 is 263) for the r=radiuses of a ball.

According to the Parameter of Overall Design of pump fluid end 200, the origin O (or central point) of the 3D shape of limited boundary 260 Can with any or all of axis aligned in general in each axis 203,206,213 and 216 in hole 204,207,214 and 210 or Person not with any of which axis aligned in general.For example, in some exemplary embodiments, cross-drilled hole is in fluid communication the origin O in chamber 262 Can be with suction side axis 206 and discharge side axis 216 (as Fig. 6-8 describes) all aligned in general, or which can be identical Or on different directions with 216 Strategic Lateral Offset of axis 206 and/or axis.In other embodiments, origin O can be from plunger axis 203 bias one straight down apart from 203z (as shown in figs 6-8), it should be understood that, origin O also can be perpendicular from plunger axis 203 Directly upwardly bias and/or Strategic Lateral Offset, or which can be with 203 aligned in general of plunger axis.In a further embodiment, origin O can bias one apart from 213z (as shown in figs 6-8) straight down from side axle line 213, and the distance can be with offset or dish 203z phases Deng or it is different.In other embodiments, the origin O in cross-drilled hole fluid communication chamber 262 can also be biased straight up from side axle line 213 And/or can be with aligned in general from 213 Strategic Lateral Offset of axis, or both.

Figure 10 and 11 respectively illustrates each pump element and has been in the central plunger part 270b of pump 250 it The cross-sectional view of the pump fluid end 200 described in Fig. 6 and 8 afterwards.As shown in Figure 10, stuffing box 232 has been mounted to immerse oneself in In hole 219, plunger 202 is had been mounted to inside stuffing box 232, in pump operated period, when plunger is back and forth transported in plunger hole 204 When dynamic, stuffing box is adapted to provide for the dynamic sealing closed to the atmospheric pressure of the outer surface of plunger 202.In certain embodiments, post Plug 202 includes the connecting joint 202f of the power end (not shown) for being suitable to plunger 202 is mechanically coupled to pump 250.And as schemed Shown in 10, side via plug 212 has been removably coupled to pump case 201, for example, by side via plug 212 can be removed Be threadedly coupled to inside side passage opening 211 etc..In certain embodiments, side via plug 212 can have lobe or Hub 212b, when being installed in pump case 201, the lobe or hub extend inside side via hole 214.Additionally, sealing ring 212s is can be positioned between hub 212b and side via hole 214 to carry out the sealing of pressure-tight.

As shown in FIG. 10 and 11, dump valve 209 is may be mounted inside tap 210.When in pump operated period due to horizontal stroke Hole be in fluid communication chamber 262 inside Fluid pressure increase and activated (this be by plunger 202 in plunger hole 204 towards cross-drilled hole stream Body connects the traveling in chamber 262 and causes) when, dump valve 209 is opened, and chamber 262 is in fluid communication in cross-drilled hole will pass through tap 210 Fluid communication is provided and outlet 227 between.Leave cross-drilled hole be in fluid communication chamber 262 enter the fluid of outlet 227 then can be with Fluid end component 200 is left to pump discharge 230 (referring to Fig. 5) by lateral communication hole 230c streams.As shown in FIG. 10 and 11, bullet Spring 208 can bias dump valve 209 against valve retainer 209s.In certain embodiments, valve retainer 209s can be connected to Bottom passageway plug 229, bottom passageway plug can be removably coupled to pump case 201 with 212 similar mode of side via plug, For example by bottom passageway plug 229 is removedly threadedly coupled in bottom passageway opening 228.Equally with side via plug 212 Equally, bottom passageway plug 229 may include to extend to the lobe or hub 229b in bottom passageway hole 234, sealing ring 229s Crestor Position is between hub 229b and bottom passageway hole 234 carrying out the sealing of pressure-tight.

As it was previously stated, inlet valve 205 is also may be mounted to inside inlet hole 207.When during operation as cross-drilled hole fluid connects Fluid pressure inside cavity 262 is reduced and activated that (this is in fluid communication away from cross-drilled hole in plunger hole 204 by plunger 202 The traveling in chamber 262 and cause) when, inlet valve 205 is opened, will pass through fluid intake of the inlet hole 207 in pump fluid end 200 Fluid communication is provided between (not shown) and suction inlet 217.Fluid into suction inlet 217 then can be flowed by connecting chamber 218 Enter cross-drilled hole to be in fluid communication in chamber 262, then, from here, fluid can be in fluid communication chamber 262 from cross-drilled hole in the foregoing manner and flow into row In outlet 227.As shown in FIG. 10 and 11, spring 208 can bias inlet valve 205 against valve stop fixing device 220.At least In some exemplary embodiments, valve stop fixing device 220 is adapted to be mounted to cross-drilled hole and is in fluid communication in chamber 262, and here, which was both The valve retainer for inlet valve 205 can be played a part of, can be played again and inlet valve 205 is protected inside inlet hole 207 Hold the effect of fixing device in place.Additionally, in certain embodiments, valve stop fixing device 220 may be configured such that this At least some surface (for example, the surface 223s shown in Figure 12-17) of device 220 is in fluid communication chamber 262 with cross-drilled hole is limited The shape on border 260 is substantially consistent, and this will be further described below.

Figure 12-17 is example valve stop fixing device (for example valve shown in, Figure 10 and 11 according to the disclosure respectively Stop fixing device isometric views 220), top view, side view, upward view, end-view and sectional view.As shown in Figure 12-17, Valve stop fixing device 220 can have bottom spring dead plate 221 and a pair in the fixed lobes 223 being diametrically opposed to one another, wherein, Each fixed lobes is projected or is extended away from the first side of spring dead plate in each end of spring dead plate 221 and (for example, existed In the view described in Figure 12-17, in the generally upward direction from the top side of spring dead plate 221).According to pump 250 Various designs and/or operating parameter, for example, pump flow rate, fluid viscosity etc., valve stop fixing device 220 can include big Body is positioned at the fluid flowing passage 222 of each fixed lobes 223 and the junction of the spring dead plate 221 of bottom.Flow of fluid Passage 222 may be adapted to allow from outlet 217 fluid for flowing out to flow through around valve stop fixing device 220, into cross-drilled hole stream In body connection chamber 262, wherein drag overall and/or overall presure drop are less.

In certain embodiments, the groove 221g for being generally located at central authorities can be positioned at spring dead plate 221 and fixed lobes On 223 relative sides (for example, on the bottom side of the fixed plate 221 in the view shown in Figure 12-17).Groove 221g can be limited greatly The centrally located lobe of body or hub 221b (see, for example, Figure 12,14,15 and 17), the lobe or hub are fixed away from spring Second (bottom) side of plate 221 projects or extends (for example, in the generally downward direction in the view described by Figure 12-17). Lobe 221b may be adapted to engage and fix inlet valve biasing spring and (for example, be suitable to the bias suction during the operation of pump 250 The spring 208 of valve 205 (referring to Figure 10 and 11)).Additionally, one or two in fixed lobes 223 can include pin-and-hole 223h, pin Hole be dimensioned to receive stop pin 220p it is (not shown；Referring to Figure 11 and 22).Stop pin 220p was suitable in pump operated period Substantially prevent valve stop fixing device 220 from rotationally disengaging its appropriate location, so as to play the anti-rotation device of valve stop fixing device Effect, this will be further described below.Additionally, in certain embodiments, one or more recesses 221n can be formed in In the upper surface of spring dead plate 221, which can be used for contributing to for valve stop fixing device 220 being installed to cross-drilled hole fluid communication In chamber 262 (and contribute to by valve stop fixing device from cross-drilled hole be in fluid communication chamber in remove), this will below in reference to Figure 18- 22 further describe.

In certain embodiments, the fixed lobes 223 of valve stop fixing device 220 may be configured such that each fixed lobes 223 outer surface 223s's at least goes up bending big body phases of the part 223u with the inner surface 261 that chamber 262 is in fluid communication with cross-drilled hole The curved shape of symbol.So, the curved shape being substantially consistent of the outer surface 223s on the upper part 223u of fixed lobes 223 can It is suitable for allowing that valve stop fixing device 220 is installed to pump fluid end 220 in the way of further describing with reference to Figure 18-22 In.Further, since the shape that this of surface 223s is substantially consistent, when valve stop fixing device 220 is mounted as described, Fixed lobes 223 can be adapted to cross-drilled hole fluid communication chamber is supportedly contacted at least along the upper part 223u of each fixed lobes 223 262 inner surface 261.Further, since the origin O of the curved shape being substantially consistent for limiting surface 223s is positioned at admittedly Determine between lobe 223, below the top 220t of valve stop fixing device 220, and above the bottom 220b of device 220 (referring to Figure 13,14 and 17；Also referring to Figure 11), so the surface 223s on the upper part 223u of fixed lobes 223 can be in fluid communication along cross-drilled hole The curved surface 261 in chamber 262 all extends above and below origin O.Therefore, because limiting the side that cross-drilled hole is in fluid communication chamber 262 Boundary 260 (and surface 261) generally closes off shape, and valve stop fixing device 220 is once mounted as described as follows, it is possible to The inside that cross-drilled hole is in fluid communication chamber 262 is " captured " in completely.Therefore, in installation site, cross-drilled hole is in fluid communication the phase in chamber 262 Symbol (and closing) shape can be played and prevent substantially valve stop fixing device 220 to be in fluid communication in chamber 262 up or down in cross-drilled hole Mobile effect.

Therefore, valve stop fixing device 220 is being used in combination with the cross-drilled hole fluid communication chamber 262 configured according to the disclosure When, can play will be inlet valve 205 (not shown in pump operated period；Referring to Figure 10,11 and 18-22) effect in position. Additionally, as described above, valve stop fixing device 220 can need not rely on exemplary securing elements using prior art, such as It is in fluid communication in chamber 262 in cross-drilled hole in the case of flange lip, projection, projection, groove and/or recess etc. and generally maintains in place. As such, it is possible to greatly reduce or or even eliminate generally with the retaining element of such prior art (for example, shown in Fig. 1 and 4 and The turning 115c and edge 118e of above-mentioned projection 115) around the associated detrimental fatigue in additional high stress concentrations region open Split at least some in affecting.

The curved shape of the outer surface 223s on the upper part 223u of above-described each fixed lobes 223 and cross-drilled hole stream In the bending " being substantially consistent " of the inner surface 261 in body connection chamber 262, it should be appreciated that surface 223s and surface 261 can all be configured Substantially it is consistent into the shape with the same 3D shape with border 260 (for example, ellipsoid of revolution or rotary surface etc.).But It is, as those of ordinary skill in the art are as it will be appreciated by after the complete reading disclosure, the gap 261g of suitable dimension (referring to Figure 11 A) should be present between surface 223s and 261 so that there is enough gaps between the two to allow valve stop Fixing device 220 is removably attached to cross-drilled hole and (this will be described for Figure 18-22 below) is in fluid communication in chamber 262, while The outer surface 223s of fixed lobes 223 is still allowed to contact the surface 261 that cross-drilled hole is in fluid communication chamber 262 with sufficiently supporting, so as in pump Device 220 is held in place during operation, as noted above.Therefore, when the respective shapes and same three of surface 223s and 261 When the border 260 of dimension shape is substantially consistent, for producing the equation of respective surfaces 223s and 261 therefore suitably can be adjusted Section, to allow predetermined gap 261g sizes between the two suitable.

For example, the 3D shape wherein with border 260 is limited by the ellipsoid of revolution that half main shaft is respectively a, b and c Those embodiments in, in superincumbent equation 1 produce cross-drilled hole be in fluid communication chamber 262 inner surface 261 half main shaft Can be defined below：

Wherein：

a₁、b₁And c₁It is half main axis length for limiting surface 261；With

Design gaps 261g between g=surfaces 261 and surface 223s.

Similarly, half main shaft for the outer surface 223s of the upper part 223u for producing fixed lobes 223 in equation 1 can It is defined below：

Wherein,

a₂、b₂And c₂It is half main axis length for limiting surface 232s；With

Design gaps 261g between g=surfaces 261 and surface 223s.

During 3D shape is those exemplary embodiments of spheroid wherein, for producing side in superincumbent equation 2 The radius of a ball on boundary 260 is defined as r, then the inner surface 261 and fixed lobes 223 in chamber 262 are in fluid communication for producing cross-drilled hole The radius of the outer surface 223s of part 223u can be defined as follows：

Wherein,

r₁It is the radius of a ball for limiting surface 261；

r₂It is the radius of a ball for limiting surface 223s；

Design gaps 261g between g=surfaces 261 and surface 223s.

Only unrestricted by way of example, in an illustrative embodiment, cross-drilled hole is in fluid communication the inner surface 261 in chamber 262 Be machined in the housing 201 of pump fluid end 200, and can be by shown in Fig. 7 be about 108.00mm (4.250 inches) 263 (r above of the radius of a ball₁) ball limit.Additionally, the permission valve stop fixing device 220 shown in Figure 11 A is installed to horizontal stroke Design gaps 261g (g above) that hole is in fluid communication in chamber 262 can be about 0.25mm (0.010 inch).Such In embodiment, the radius of a ball 265 of the outer surface 223s of the upper part 223u of the restriction fixed lobes 223 shown in Figure 13,14 and 17 (r above₂) can be about 107.75mm (4.240 inches).It should be understood, of course, that cross-drilled hole is in fluid communication the reality in chamber 262 Shape and size can be differently configured from examples detailed above, this Parameter of Overall Design depending on fluid end component 200, including each hole 204, 210th, 214 and 218 size, corresponding axially bored line 203, any lateral and/or vertically biasing etc. between 216,213 and 206. Similarly, it is also possible to using smaller or greater design gaps 261g, if the gap installed for fixing device it is suitable and Required bearing contact amount is reached between surface 223s and 261.

Figure 18-22 be the central plunger part 270b of exemplary stream body end component depicted in figure 4 200 each is transversal Face isometric views, depict and can be used for the example valve stop fixing device of the disclosure according to one embodiment of the disclosure (for example, 220) the valve stop fixing device shown in Figure 12-17 is installed at least some step that cross-drilled hole is in fluid communication in chamber 262 Suddenly.Figure 18 is turning initially to, valve stop fixing device 220 has been inserted partially in side passage opening 211, and near leading to horizontal stroke Hole is in fluid communication the via hole 214 in chamber 262.In various embodiments, valve stop fixing device 220 total height 220h (referring to Figure 17) less than the internal diameter of via hole 214, additionally, the global shape (referring to Figure 16) from either end observation of device 220 is configured Into causing device 200 to may be adapted to through via hole 214, it is in fluid communication in chamber 262 into cross-drilled hole.

Figure 19 shows that having passed through via hole 214 in valve stop fixing device 220 is inserted into cross-drilled hole fluid communication chamber 262 In after fluid end component 200 during subsequent installation steps.As shown in figure 19, valve stop fixing device 220 has been determined Position above inlet valve 205, such as so that biasing spring 208 is already installed on the projection on 221 bottom side of spring dead plate On portion 221b (referring to Figure 12,14,15 and 17).By this way, valve stop fixing device 220 can exist along suction side axis 206 Central authorities are generally located above inlet valve 205.

Next, as shown in figure 20, valve stop fixing device 220 is in fluid communication in chamber 262 in cross-drilled hole and is pushed down, from And on inlet valve 205 compression spring 208.Additionally, valve stop fixing device 220 is pushed down, until at least outer surface The lower part of 223s come close to or in contact with cross-drilled hole be in fluid communication chamber surface 261 positioned at connection chamber 218 and plunger hole 204 between with And the part between connection chamber 218 and via hole 214.As previously described, because valve stop fixing device 220 and cross-drilled hole fluid The shape of the curved surface in connection chamber 262 is substantially consistent, and in the position, can make the lower part of surface 223s generally continuously Bearing contact correspondence surface 261.

Turning now to Figure 21, valve stop fixing device 220 can then rotate a quarter circle so that fixed lobes 223 are moved It is dynamic to depart from plunger axis 203.So, when reciprocating plunger 202 was gone along plunger axis 203 in plunger hole 204 in pump operated period When entering, chamber 262 is in fluid communication as plunger 202 enters and leaves cross-drilled hole, plunger will be between fixed lobes 223 and through bullet Above spring fixed plate 221, so as to avoid that plunger 202, valve stop fixing device 220 and/or other any internal pumping elements are made Into damage.Additionally, when valve stop fixing device 220 is rotated to the horizontal orientation relative to plunger axis 203, fixed lobes 203 The outer surface 223s for almost entirely going up part 223u then can generally continuously bearing contact cross-drilled hole be in fluid communication chamber 262 it is interior Surface 261 (referring to Figure 11).In addition, when valve stop fixing device 220 is located on the position, for limiting fixed lobes 223 The origin O of the 3D shape that outer surface 223s and cross-drilled hole are in fluid communication both inner surfacies 261 in chamber 262 can be positioned on cross-drilled hole fluid On substantially same position in connection chamber 262, as previously described, because the chi of the gap 261g (referring to Figure 11 A) between two surfaces It is very little, two origin O somewhat differences.Additionally, and as noted previously, as the surface 223s of fixed lobes 223 is in position substantially phase All bend above and below same origin O (referring to Figure 11,13,14 and 17), therefore, correspondence surface 261 can be played and be prevented substantially Valve stop fixing device 220 is in fluid communication the effect that chamber 262 is moved upwardly or downwardly relative to cross-drilled hole, so as to allow device 220 Will be inlet valve 205 in position in pump operated period.

In some illustrative embodiments, valve stop fixing device installation tool (not shown) can be used to contribute to valve stop The installation of fixing device 220 and/or remove.As described in the description above in connection with Figure 12-17, one or more recesses 221n can It is formed on the upper surface of spring dead plate 221.In certain embodiments, recess 221n may be adapted to receive corresponding shaping work The end of tool (not shown), the end then can be used for as shown in figure 20 and above-mentioned push down on valve stop fixing device 220 and/or can be used to for device 220 to rotate the supreme horizontal orientation addressed shown in Figure 21.In at least some embodiments, Figure 20 The step of with shown in 21, may pass through side passage opening 211 and via hole 214 is performed.In other embodiments, in Figure 20 and 21 The step of may pass through bottom passageway opening 228 and perform, i.e. dump valve 209 is being removed to provide into horizontal from tap 210 After hole is in fluid communication the top side path in chamber 262.

Figure 22 shown after stop pin 220p is had been mounted in pin-and-hole 223h, valve stop fixing device 220 it is another Outer installation steps.Stop pin 220p is suitable to prevent substantially valve stop fixing device 220 from rotating in pump operated period, so as to fill Put 220 holdings horizontal orientation depicted in figure 21.So, fixed lobes 223 are maintained at outside the path of reciprocating plunger 202, So as to avoid the potential damage to plunger 202 and/or other internal pumping elements.In certain embodiments, stop pin 220p can be with It is magnetic padlock rationed marketing 220p, for example, rare-earth magnet of such as neodium magnet etc..By using magnetic padlock rationed marketing 220p, therefore can avoid The inner surface 261 for having to chamber 262 is in fluid communication along cross-drilled hole forms any other groove, recess, hole, threaded openings etc., and This is necessary for other types of locking pin element.However it will be appreciated that according to the design mesh of stop pin 220p , it is also possible to designed using other types of stop pin and/or material.

In some of the exemplary embodiments, it is shown in Figure 18-22 and above-mentioned by being performed with substantially contrary order Step, valve stop fixing device 220 can be in fluid communication chamber 262 from cross-drilled hole and remove.

Therefore, the present disclosure describes various methods, device and pump construction, which can be used for the fluid end for reducing reciprocating pump Inner surface on high stress concentrations region presence, so as to reduce the sensitivity that the fluid end of pump is formed to detrimental fatigue crackle Property.In certain embodiments, disclose cross-drilled hole and chamber is in fluid communication, which can be used to minimize and typically occurs in the reciprocal of prior art The severe of the cross-drilled hole geometry in the plug portion of pump.In other embodiments, disclose it is a kind of can with it is disclosed Cross-drilled hole is in fluid communication the valve stop fixing device that chamber is used in combination, wherein, valve stop fixing device is configured to have at least one A little surfaces, the shape that the shape on these surfaces is in fluid communication chamber with cross-drilled hole are substantially consistent, so as to avoid inside pump using extra High stress concentrations element (for example, recess, groove, projection etc.) installing valve stop fixing device.

Particular embodiments disclosed above is merely illustrative because the present invention can by it is different, but change in the way of being equal to Enter and implement (this is obvious for the those skilled in the art be benefited from teaching in this).For example, above The method and step of elaboration can be performed in a different order.Additionally, thin without intending to be limited to construction or design shown here Section.It is, therefore, apparent that particular embodiments disclosed above is changed or improved, all these changes are considered within the present invention's Within scope and spirit.Therefore, scope claimed herein is illustrated in the following claims.

Claims

1. a kind of valve stop fixing device (220), the valve stop fixing device are suitable to connect with the cross-drilled hole fluid of reciprocating pump (250) Cavity (262) is docked, and the valve stop fixing device (220) includes：

Spring dead plate (221)；With

Multiple fixed lobes (223), the fixed lobes are generally away from the first side of the spring dead plate (221) and extend, described many Each in individual fixed lobes (223) includes the upper part (223u) with outer surface (223s), wherein, each described outer surface (223s) shape and the cross-drilled hole docked with the valve stop fixing device (220) is in fluid communication the inner surface of chamber (262) (261) shape is substantially consistent with least one of shape of rotary surface, by the shape of the inner surface (261) Shape, the valve stop fixing device (220) are suitable to be fixed on cross-drilled hole fluid communication chamber (262) inside.

2. valve stop fixing device (220) according to claim 1, wherein, the spring dead plate (221) includes first End and the second end, the plurality of fixed lobes (223) include the first and second fixed lobes (223), first and second fixed lobes (223) the corresponding described first end and the second end for being generally away from the spring dead plate (221) extends.

3. valve stop fixing device (220) according to claim 1, the valve stop fixing device also include being generally away from The lobe (221b) that second side of the spring dead plate (221) extends, second side is with first side conversely, described Lobe (221b) is adapted to engage with and fixes the biasing spring (208) of the inlet valve (205) of the reciprocating pump (250).

4. valve stop fixing device (220) according to claim 1, wherein, the valve stop fixing device (220) is suitable to Inlet valve (205) is fixed in the side inlet hole (207) of the reciprocating pump (250).

5. valve stop fixing device (220) according to claim 1, wherein, the rotary surface is ellipsoid of revolution, institute Spheroidal original point position is stated between the plurality of fixed lobes (223), at the bottom of the valve stop fixing device (220) Above portion (220b), and below the top (220t) of the valve stop fixing device (220).

6. valve stop fixing device (220) according to claim 5, wherein, the ellipsoid of revolution be oblate spheroid and One of prolate spheroid.

7. valve stop fixing device (220) according to claim 5, wherein, the ellipsoid of revolution is spheroid.

8. valve stop fixing device (220) according to claim 1, wherein, the valve stop fixing device (220) is suitable to Chamber (262) internal axis of rotation around the rotary surface is in fluid communication in the cross-drilled hole to rotate to second from first position Put.

9. valve stop fixing device (220) according to claim 8, wherein, the second position is suitable to described reciprocal The internal reciprocating plunger (202) of the plunger hole (204) in the reciprocating pump (250) is allowed to exist during the operation of pump (250) Extend between the plurality of fixed lobes (223).

10. valve stop fixing device (220) according to claim 1, the valve stop fixing device also include at least one Individual stop pin, the stop pin are suitable to prevent the valve stop fixing device (220) to be in fluid communication in chamber (262) in the cross-drilled hole Portion rotates.

11. valve stop fixing devices (220) according to claim 10, wherein, at least one stop pin (220p) includes Magnet.

12. valve stop fixing devices (220) according to claim 1, wherein, including the plurality of fixed lobes (223) The outer surface (223s) of the upper part (223u) is substantially entirely adapted for contact with the cross-drilled hole and chamber (262) is in fluid communication The inner surface (261).

13. valve stop fixing devices (220) according to claim 1, the valve stop fixing device also include fluid stream Dynamic passage (222), the fluid flowing passage are positioned at each fixed lobes in the plurality of fixed lobes (223) and the spring The junction of fixed plate (221).

14. valve stop fixing devices (220) according to claim 1, wherein, the inner surface (261) is by the first revolution Ellipsoid is limited, and the outer surface (223s) is limited by the second ellipsoid of revolution, described second spheroidal each half master The little predetermined gap distance of axle corresponding half main shaft more spheroidal than described first.

15. valve stop fixing devices (220) according to claim 14, wherein, the predetermined gap distance is of about 0.25mm or less.

A kind of 16. fluid end components (200) of reciprocating pump (250), the fluid end component (200) include：

Pump case (201)；

Cross-drilled hole is in fluid communication chamber (262), and the cross-drilled hole is in fluid communication chamber and is positioned in the pump case (201), the cross-drilled hole stream Body connects chamber (262) with inner surface (261), the shape of the inner surface (261) and by the rotary surface with axis of rotation The shape on the border (260) of restriction is substantially consistent；

Inlet hole (207), the inlet hole are positioned in the pump case (201)；

Inlet valve (205), the inlet valve are positioned in the inlet hole (207)；With

Valve stop fixing device (220), the valve stop fixing device be positioned at during the cross-drilled hole is in fluid communication chamber (262) and Including the multiple fixed lobes (223) with outer surface part (223s), wherein, the valve stop fixing device (220) is suitable to It is positioned at when the cross-drilled hole is in fluid communication chamber (262) inside and rotates around the axis of rotation, and is suitable in the reciprocating pump (250) inlet valve (250) is fixed in the inlet hole (207) during operating, each described outer surface part (223s) shape is substantially consistent with the shape on the border (260) of the rotary surface.

17. fluid end components (200) according to claim 16, the fluid end component also include：

Plunger hole (204), the plunger hole are positioned in the pump case (201), the plunger hole (204) and the cross-drilled hole stream Body connection chamber (262) intersects；With

Plunger (202), the plunger are suitable to move back and forth inside the plunger hole (204), wherein, dress is fixed in the valve stop Put (220) to be suitable to chamber (262) internal rotating is in fluid communication to operational orientation in the cross-drilled hole, operate in the reciprocating pump (250) Period, the operational orientation allow the plunger (202) to extend between the plurality of fixed lobes (223).

18. fluid end components (200) according to claim 16, wherein, the rotary surface is ellipsoid of revolution, described Spheroidal original point position is between the plurality of fixed lobes (223), in the bottom of the valve stop fixing device (220) (220b) above and below the top (220t) of the valve stop fixing device (220).

19. fluid end components (200) according to claim 18, wherein, the ellipsoid of revolution is oblate spheroid and length One of spheroid.

20. fluid end components (200) according to claim 18, wherein, the ellipsoid of revolution is spheroid.

21. fluid end components (200) according to claim 16, the fluid end component also include at least one stop pin (220p), the stop pin is suitable to prevent the valve stop fixing device (220) that chamber (262) inside is in fluid communication in the cross-drilled hole Rotation.

22. valve stop fixing devices (220) according to claim 21, wherein, at least one stop pin (220p) includes Magnet.

23. fluid end components (200) according to claim 16, wherein, the appearance of the plurality of fixed lobes (223) Face part (223s) is substantially entirely adapted for contact with the inner surface (261) that the cross-drilled hole is in fluid communication chamber (262).

24. fluid end components (200) according to claim 16, wherein, the inner surface (261) is oval by the first revolution Body is limited, and the outer surface part (223s) is limited by the second ellipsoid of revolution, described second spheroidal each half master The little predetermined gap distance of axle corresponding half main shaft more spheroidal than described first.

25. fluid end components (200) according to claim 24, wherein, the predetermined gap distance is of about 0.25mm Or it is less.

26. fluid end components (200) according to claim 16, the fluid end component also include being positioned at the pump case Suction inlet (217/218) in body (201), the suction inlet (217/218) are in fluid communication chamber (262) with the cross-drilled hole and intersect, Wherein, the inlet valve (205) is suitable to control from the inlet hole (207) to flow into the fluid in the suction inlet (217/218) Flowing, the suction inlet (217/218) are adapted to provide for the inlet hole (207) and are in fluid communication between chamber (262) with the cross-drilled hole Fluid communication.

27. fluid end components (200) according to claim 16, the fluid end component also include：

Tap (210), the tap are positioned in the pump case (201)；

Dump valve (209), the dump valve are positioned in the tap (210)；With

Outlet (217), the outlet are positioned in the pump case (201), wherein, the dump valve (209) is suitable to control The flow of fluid flowed in the outlet (217) is made from the tap (210), and the tap (210) is adapted to provide for institute State the fluid communication that cross-drilled hole is in fluid communication between chamber (262) and the outlet (217).

28. fluid end components (200) according to claim 16, the fluid end component are also opened including at least one path Mouth (211/214), is in fluid communication chamber (262) during the passage opening is positioned at the pump case (201) and with the cross-drilled hole It is intersecting, wherein, the valve stop fixing device (220) be suitable to by least one passage opening (211,214) be installed to The cross-drilled hole is in fluid communication in chamber (262).